West Coast warming blamed on natural causes, not human activity

September 23, 2014 9:22 PM

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West Coast warming blamed on natural causes, not human activity

A century-long warming of the West Coast of North America has occured mostly due to natural changes in winds and not human-induced activity such as greenhouse gas emissions, a new study suggests.

The average temperature along the West Coast increased by about 1 degree Fahrenheit between 1900 and 2000. The study, published in the Proceedings of the National Academy of Sciences, found that changing winds that affect ocean circulation were responsible for more than 80 percent of the warming tre...

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